Tīpoka ki ngā ihirangi matua
Whakaoti mō x
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Ngā Raru Ōrite mai i te Rapu Tukutuku

Tohaina

9x-18=0
Tangohia te 3 i te -15, ka -18.
9x=18
Me tāpiri te 18 ki ngā taha e rua. Ko te tau i tāpiria he kore ka hua koia tonu.
x=\frac{18}{9}
Whakawehea ngā taha e rua ki te 9.
x=2
Whakawehea te 18 ki te 9, kia riro ko 2.